公开(公告)号：US20190076875A1

公开(公告)日：2019-03-14

申请号：US15699213

申请日：2017-09-08

Applicant: GM Global Technology Operations LLC

Inventor： Frank D. Risko

IPC: B05D3/00 ,  B05D7/14 ,  B23K26/362

Abstract: A number of variations may include a product including a substrate comprising a metal comprising an etched region and a first layer comprising a clear coat overlying the etched region wherein the etched region is constructed and arranged to improve filiform corrosion resistance on the substrate.

公开(公告)号：US11951538B2

公开(公告)日：2024-04-09

申请号：US17157293

申请日：2021-01-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Adam G. Kotlarek ,  Frank D. Risko

IPC: B22D17/00 ,  C22C21/08 ,  C22F1/047

CPC classification number: B22D17/007 ,  C22C21/08 ,  C22F1/047

Abstract: Hollow automotive parts, methods for fabricating hollow automotive parts, and methods for fabricating hollow castings are provided. An exemplary method for fabricating a hollow casting includes casting at least a first casting section and a second casting section from a slurry using a semi-solid casting process, and welding the casting sections together at interfaces therebetween.

公开(公告)号：US11926174B2

公开(公告)日：2024-03-12

申请号：US17560466

申请日：2021-12-23

Applicant: GM Global Technology Operations LLC

Inventor： Frank D. Risko ,  Lora Dawn Herron

IPC: B60B3/06 ,  B22D19/00 ,  B60B1/08

CPC classification number: B60B3/06 ,  B22D19/00 ,  B60B1/08 ,  B60B2310/202 ,  B60B2360/32

Abstract: A casting system includes a casting for an automobile vehicle having an interior section. Multiple central portions are individually positioned in one of multiple areas of the interior section completely encapsulated by a metal of the casting. An insert member is positioned in individual ones of the multiple central portions, the insert member having a higher melting point than a melting point of a metal of the casting the insert member displaces.

公开(公告)号：US20230201916A1

公开(公告)日：2023-06-29

申请号：US17560466

申请日：2021-12-23

Applicant: GM Global Technology Operations LLC

Inventor： Frank D. Risko ,  Lora Dawn Herron

IPC: B22D19/00 ,  B60B27/00

CPC classification number: B22D19/00 ,  B60B27/00 ,  B60B2310/202 ,  B60B2360/32

Abstract: A casting system includes a casting for an automobile vehicle having an interior section. Multiple central portions are individually positioned in one of multiple areas of the interior section completely encapsulated by a metal of the casting. An insert member is positioned in individual ones of the multiple central portions, the insert member having a higher melting point than a melting point of a metal of the casting the insert member displaces.

公开(公告)号：US20220314372A1

公开(公告)日：2022-10-06

申请号：US17217483

申请日：2021-03-30

Applicant: GM Global Technology Operations LLC

Inventor： Benjamin E. Slattery ,  Daniel T. Berry ,  Daniel L. Baker ,  Frank D. Risko

IPC: B23K26/40

Abstract: A method of making an enhanced cast iron workpiece having increased oil retention is provided. The method comprises providing a laser tool arranged to emit a laser to perform carbon burn-off from a cast iron workpiece. The cast iron workpiece comprises cast iron and having a first surface with carbon microstructures thereon. The method further comprises selectively laser burning-off carbon microstructures from the first surface of the workpiece to form a pattern on the first surface. The pattern has separate pockets by the laser burn-off of carbon microstructures on the first surface. Each separate pocket is separate from and free of fluid communication with any other pocket relative to the first surface to provide enhanced lubricant retention in each pocket on the first surface. The method further comprises heating the workpiece to between about 200° C. and about 400° C. to temper the first surface and cooling the workpiece to ambient temperature.

公开(公告)号：US20220234097A1

公开(公告)日：2022-07-28

申请号：US17157293

申请日：2021-01-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Adam G. Kotlarek ,  Frank D. Risko

IPC: B22D17/00 ,  C22C21/08 ,  C22F1/047

Abstract: Hollow automotive parts, methods for fabricating hollow automotive parts, and methods for fabricating hollow castings are provided. An exemplary method for fabricating a hollow casting includes casting at least a first casting section and a second casting section from a slurry using a semi-solid casting process, and welding the casting sections together at interfaces therebetween.